L97.802

HCC Category Mapping

What This Code Means

A long-lasting open sore on the lower leg (not caused by pressure) where the skin is broken and the fatty tissue underneath is exposed.

Coding Tips

• •This code indicates moderate severity with fat layer exposure; document the depth of ulcer clearly
• •Ensure the ulcer location is documented as 'other part of unspecified lower leg' to support this code

Clinical Significance

This non-pressure chronic ulcer on the other part of unspecified lower leg with exposed subcutaneous fat indicates moderate tissue destruction that has penetrated beyond the dermis, signaling worsening wound status and increased infection risk. Chronic non-pressure ulcers are significant for risk adjustment because they indicate ongoing complex wound management needs, increased healthcare utilization, and often reflect underlying systemic conditions such as peripheral vascular disease, diabetes mellitus, or venous insufficiency. Accurate severity coding directly impacts care planning, specialist referral decisions, and appropriate resource allocation for wound care services.

Documentation Requirements

• ✓Confirmation that the ulcer is chronic (present for extended duration, not acute)
• ✓Documentation that the ulcer is NOT caused by pressure (non-pressure etiology)
• ✓Specific anatomical site of the ulcer on the other part of unspecified lower leg
• ✓Query provider for laterality if not documented (left vs. right)
• ✓Wound assessment documenting exposed subcutaneous fat layer
• ✓Confirmation that deeper structures (muscle, bone) are not involved
• ✓Underlying etiology or contributing conditions (e.g., venous insufficiency, arterial disease, diabetes mellitus, neuropathy)
• ✓Current wound measurements (length, width, depth) and wound bed description
• ✓Current treatment plan and wound care management

Commonly Confused Codes